The ball valve we could manufacture many kinds of standards such as API, ANSI (USA), BS (Britain), DIN (German), JIS, JPI (Japan), GB, JB (China), and various nonstandard products which can be extensi ...Keyword : ball valve

1.Blow-out proof stem For the purpose of preventing the stem from flying off resulting in abnormal rising of the inner pressure of valve,shoulder is fixed at the lower part of the stem.In additio ...Keyword : ball